RANKED GUIDE

The most used AI chatbots, explained

Eight AI chatbots that millions of people use, what each one is best at, and how to choose the right one for you.

UPDATED OCT 2026 · 7 MIN READ

QUICK ANSWER

The short version

ChatGPT is generally the most widely known and used AI chatbot, with Gemini close behind thanks to Google's reach, and Claude, Perplexity, Grok, Meta AI, DeepSeek and Le Chat each winning a loyal group of users for different reasons.

Exact user numbers change every month and differ by country, so instead of chasing a ranking, this guide explains what each chatbot is best at so you can choose the right one.

Pick in 10 seconds

All-rounder: ChatGPT, for chat, images, voice and custom assistants.
Google user: Gemini, because it sits inside Search, Gmail, Docs and Android.
Writing and documents: Claude, for long, careful work.
Research with sources: Perplexity, because every answer shows where it came from.

AT A GLANCE

The chatbots side by side

	MADE BY	BEST AT	FREE PLAN
ChatGPT	OpenAI	All-round use, images, voice	Yes
Gemini	Google	Google apps and everyday help	Yes
Claude	Anthropic	Writing, coding, long documents	Yes
Perplexity	Perplexity AI	Research with cited sources	Yes
Grok	xAI	Real-time info from X	Yes, limited
Meta AI	Meta	Chat inside WhatsApp, Instagram	Yes
DeepSeek	DeepSeek	Reasoning and coding at low cost	Yes
Le Chat	Mistral AI	Fast, efficient, open-model focus	Yes

Free plans, limits and features change often. Check each official site for the latest.

THE LIST

Eight AI chatbots worth knowing

ChatGPT

BY OPENAI · THE MAINSTREAM DEFAULT

The assistant that started the mainstream chatbot wave. It combines chat, image creation, voice, file analysis and custom GPTs in one app, which is why it is often the first AI people try.

Best for: Everyday questions, brainstorming, images, voice chats.
Keep in mind: Writing can feel generic without good prompts, and top models may need a paid plan.

Read the ChatGPT guide →

Gemini

BY GOOGLE · BUILT INTO GOOGLE APPS

Google's assistant works with Search, Gmail, Docs, Drive and Android, so it reaches a huge number of people without them installing anything new.

Best for: People who live in Google's apps and want quick, handy help.
Keep in mind: Results can vary between features, and some tools are limited to paid plans.

Read the Gemini guide →

Claude

BY ANTHROPIC · CAREFUL AND LONG-FORM

Built around careful reasoning and honest answers. It is popular for reading long documents, writing that sounds natural, and coding with tools like Claude Code.

Best for: Writers, developers, analysts and anyone working with long files.
Keep in mind: It does not create images, and heavy use can reach session limits.

Read the Claude guide →

Perplexity

AI SEARCH · ANSWERS WITH SOURCES

An answer engine rather than a pure chatbot. Each reply comes with links so you can check where the information came from, which makes it a favourite for research.

Best for: Fact-finding, study, quick research and news.
Keep in mind: It is less suited to long creative writing or deep multi-step projects.

Read the Perplexity guide →

Grok

BY XAI · REAL-TIME AND IRREVERENT

Grok is built into X and leans on real-time posts and a more casual, playful tone.

Best for: Following trending topics and live conversations.
Keep in mind: Tone is not for everyone, and it is closely tied to the X platform.

Read the Grok guide →

Meta AI

BY META · INSIDE YOUR CHATS

Meta AI lives inside WhatsApp, Instagram and Facebook, so people use it without leaving the apps they already open every day.

Best for: Quick questions and ideas inside messaging apps.
Keep in mind: Less suited to serious, long-form or professional work.

Read the Meta AI guide →

DeepSeek

OPEN-WEIGHT · LOW COST

A model family known for strong reasoning and coding at a notably low cost, which made it popular with developers and cost-conscious users.

Best for: Coding, maths and reasoning on a budget.
Keep in mind: Check data privacy and where your data is stored before sharing sensitive information.

Read the DeepSeek guide →

Le Chat

BY MISTRAL AI · FAST AND EFFICIENT

The assistant from French lab Mistral, focused on speed, efficiency and open models.

Best for: Quick answers and people who like open-model companies.
Keep in mind: A smaller ecosystem than the biggest names.

Read the Le Chat guide →

WHICH ONE FOR YOU

Best pick by need

Students

CHATGPT · GEMINI · PERPLEXITY

Start with free plans. Perplexity helps with sourced research, ChatGPT or Gemini with explanations and practice.

Writers

CLAUDE

A natural tone and strong instruction-following suit essays, emails and editing.

Developers

CLAUDE · DEEPSEEK · CHATGPT

All three are strong at code. Test them on a real task from your own project.

Researchers

PERPLEXITY

Cited answers make it easy to verify facts and follow the trail.

Google users

GEMINI

The tightest fit with Gmail, Drive, Docs and Android.

Casual chat

META AI · CHATGPT

Quick answers without leaving WhatsApp or the apps you already use.

FAQ

Common questions

Which AI chatbot is the most used?

ChatGPT is generally considered the most widely used, with Gemini also reaching a very large audience. Rankings shift by country and platform, so treat any single number with care.

Which AI chatbot is best for beginners?

ChatGPT and Gemini are easy starting points because they are simple to use and have free plans.

Are these chatbots free?

All of them have free options with limits. Paid plans add higher limits and more advanced tools.

Can I trust AI answers?

Not blindly. AI can make confident mistakes. Check important facts, especially for health, legal and money topics.

Do I need more than one?

Many people use two or three, for example one for writing, one for research and one built into the apps they already use.

Ready to go deeper?

Read our guide for any chatbot above, or see two of the biggest compared head to head.

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